Signaling-horn, &amp;c.



M. R. HUTOHISON.

SIGNALING HORN, 6w.

APPLIOATION FILED DEG.13,1905.

Patented Nov. 5, 1912.

Mangan- UNITED sTA'r s PATENT orm on.

MILLER REESE EUTCHISON, OF BRONXVILLE, NEW YORK.

sIGNALING-HORN, &c.

' Specification of Letters Patent. Application filed December l3, 1905. Serial No. 291,518.

To all whom it may concem:

Be it known that I, MILLER REESE HUTOHI- soN, a citizen of the United States, and a resident of Bronxville, in the county of Westchester and State of-New York, have invented certain new and useful Improvements Relating to Signaling-Horns, &c., of which the following is a specification.

The invention herein set forth relates to and concerns alarm or signaling horns, particularly those intended for use on automo- 1 biles and has for its object the production of I to ether with means 6 two vibrators 5, which, as explained above, are of characteristically different a unitary device comprising a slngle mouth piece projector or horn, in combination with two independently operated exciting means therefor, one constructed andarranged to excite signal vibrations of great amplitudeand strength and the other to excite signal vibrations of characteristically less amplitude and less strength. Thevibrating means employed may be of the general character disclosed in my prior application Ser. No. 278,562 and my Patent, 956,898.

' By this invention it is possible for the o erator to have the most elficient long (118- 'tance signal for use in the country, when proceeding at high speeds, and the softer signals in town, or when proceeding at low speeds. At the same time, the arrangement may be such that the louder signal, will be instantly available, even in town, for use, should any'great emergency arise'to justify its employment. Two of the practical ways of accomplishing this will be more fully understood by detail description in connection with the accompanying drawings in which-- Figure 1 shows a two strength horn in side elevation. Fig. 2 shows a racing model. two strength horn with single controlling means and circuits. Fig. 3 is a vertical section of an eflicient loud sounding vibrator for changing to the so ter note.

By reference to Figs. 1 and 2 it will ,be seen'that the horn or projector or mouth piece may be a long straight horn as indicated in Fig. 2, or it may be of the more conventional sha e of curved horn indicated at 1, Fig. 1. 11 either case the horn has associated with it in operative relation the sound producing intensities, one-of them, as 4, being adapted to produce the very loud signal desired for use when proceeding at high speed or in cases of emergency and the other, as 5, being adapted to produce the characteristically low intensity signals. desirable for use where the louder signal is unnecessary and would be undesirable. The vibrators 4 and 5 may be'of any desired type but are preferably ofthe type wherein the vibrator is a diaphragm actuated by suitable means, as, for instance, by an electromagnet energized by intermittent currents after the manner indicated in my said prior application Serial No. 278,562, filed September 15, 1905, wherein the interrupter is located within the magnet and diaphragm case or it may be of the type shown in my application Serial No. 280,910, filed October 2, 1905, now Patent 956,898, the latter being selected for illustration in Fig. 3 hereof. It will-be understood that the details of construction by these exciters for the horn are not claimed here nor are they essential to practise of my present invention.

The circuits may be such as shown in Fig. 2 wherein the controller 6 comprises three spring members 7 8, and 9, one of them, 8, being connected with a battery and the other two with parallel conductors 11 and 12 extending to the loud and soft sounders 4 and 5, respectively. The circuit is completed by common lead to the battery 10. In operation, 8 may be forced lnto contact with either 7 or 9', at will, thereby closing circuit either through the loud or soft sounder as may be desired. Obviously 9 may be forced into contact with 8 and by further movement 8 forced into contact with 7, thereby closing both circuits in parallel and sounding both horns.- Separate batteries may be similarly controlled from-one swi-tchin device.

In Fig. 3 I have indicated for purposes of illustration various ways in which the reso Patented Nov. 5, 1912.

nan ce of the air column of the horn may be dampened or impaired or the amplitude of the vibration of the diaphragm decreased. This may be accomplished by seriously disturbing any of those adjustments which. I

have descrilxad in my rior application and prior patent above re erred to ,as desirable to produce the loudest notes in the horn. For instance, the resonator diaphragm 24 may be moved out of position of resonance or the core of the electro-magnet may be moved out of effective range of the diaphragm by screwing rearwardly the bridge 34 supporting the same. A screw 76 provided with a thin'yielding or elastic damp ening member 77 forming an elastlc cushioning device may be screwed against the diaphragm with any desired degree of pressure to impair the effectiveness thereof. The horn 1 may be provided with a slot 80 adapted to register with a slot 81 in the case. It may be held in any desired position by set screw 82. For loud signals thehorn 1 will be turned so that the slot 80 is out of register with the slot 81 and for softer signals it will be turned so that saidslots are in register. Any other means of impairing resonance of the air column may be employed.

It will be obvious to those skilled in the art that the circuits of the vibrators i, 5 in 1 may be the same as thoseshown in Fig 2 or they may be independent circuits carrying currents of different strengths, the desired strength beingdetermined either by the power of the battery or by the amount of resistance inserted in one or both circuits.

I claim 1. An alarm horn or pipe in combination with two exciting vibrators. therefor of characteristically different intensities and both in operative relation to the air column of said horn.

2. An alarm horn and a plurality of electromagnetic vibrators therefor, of characteristically difierent intensities and both in operative relation to the same air column of said horn.

3. An alarm horn and two separate electro-magnetieally operated diaphragms of characteristically difierent intensities of vibration and both in operative relation to the air column of said horn.

, 4. An alarm or signal device comprising a horn, in combination with a vibrator and actuating means in operative relation to said horn, constructed and arranged to excite signal vibrations of great amplitude and strength in said horn, and another vibrator and actuating means also in operative rela tion to said horn, operating independently of said first mentioned vibrator, and constructed and arranged to excite therein signal vibrations of characteristically less amplitude and less strength, for the purpose described.

5. An alarm. or signaling device including a horn in combination with a vibrator comprising a diaphragm arranged in operative sound-producing relation to the air volume of said horn, actuating means in operative relation to said diaphragm and constructed and arranged tocause signal vibrations of great amplitude and strength in said horn, and another vibrator and actuating means also in operative relation to said horn and operating independently of said first-mentioned vibrator and constructed and arranged to cause therein signal vibrations of characteristically less amplitude and less strength for the purpose described. f

Signed at New York city, in the county of New York and State of New York this eleventh day of December, A. D. 1905.

MILLER REESE HUTCHISON.

Witnesses:

G. C. DEAN, K. A.MORRIB.- 

